Home / 7,721.28-10,655.28-4,577.04

Finding the Fourth Proportional to 7,721.28, 10,655.28 and 4,577.04

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Solution

The fourth proportional to 7,721.28, 10,655.28 and 4,577.04 is: 6,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.28 : 10,655.28 = 4,577.04 : x
  2. Step 2: Convert to fraction form
    7,721.28/10,655.28 = 4,577.04/x
  3. Step 3: Cross multiply
    7,721.28x = 10,655.28 × 4,577.04
  4. Step 4: Simplify right side
    7,721.28x = 48,769,642.77
  5. Step 5: Solve for x
    x = 48,769,642.77/7,721.28
  6. Step 6: Final answer
    x = 6,316.26

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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.