Home / 7,140.48-10,710.64-1,946.32

Finding the Fourth Proportional to 7,140.48, 10,710.64 and 1,946.32

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Solution

The fourth proportional to 7,140.48, 10,710.64 and 1,946.32 is: 2,919.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.48 : 10,710.64 = 1,946.32 : x
  2. Step 2: Convert to fraction form
    7,140.48/10,710.64 = 1,946.32/x
  3. Step 3: Cross multiply
    7,140.48x = 10,710.64 × 1,946.32
  4. Step 4: Simplify right side
    7,140.48x = 20,846,332.84
  5. Step 5: Solve for x
    x = 20,846,332.84/7,140.48
  6. Step 6: Final answer
    x = 2,919.46

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.