Home / 5,036.48-6,949.10-3,145.13

Finding the Fourth Proportional to 5,036.48, 6,949.10 and 3,145.13

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Solution

The fourth proportional to 5,036.48, 6,949.10 and 3,145.13 is: 4,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,036.48 : 6,949.10 = 3,145.13 : x
  2. Step 2: Convert to fraction form
    5,036.48/6,949.10 = 3,145.13/x
  3. Step 3: Cross multiply
    5,036.48x = 6,949.10 × 3,145.13
  4. Step 4: Simplify right side
    5,036.48x = 21,855,807.16
  5. Step 5: Solve for x
    x = 21,855,807.16/5,036.48
  6. Step 6: Final answer
    x = 4,339.50

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Half scale
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Double scale
Find fourth proportional to 5,037.48, 6,950.47 and 3,146.13
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.