Home / 5,130.83-7,081.47-4,897.10

Finding the Fourth Proportional to 5,130.83, 7,081.47 and 4,897.10

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Solution

The fourth proportional to 5,130.83, 7,081.47 and 4,897.10 is: 6,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.83 : 7,081.47 = 4,897.10 : x
  2. Step 2: Convert to fraction form
    5,130.83/7,081.47 = 4,897.10/x
  3. Step 3: Cross multiply
    5,130.83x = 7,081.47 × 4,897.10
  4. Step 4: Simplify right side
    5,130.83x = 34,678,684.44
  5. Step 5: Solve for x
    x = 34,678,684.44/5,130.83
  6. Step 6: Final answer
    x = 6,758.88

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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.