Home / 7,640.28-10,543.32-4,655.04

Finding the Fourth Proportional to 7,640.28, 10,543.32 and 4,655.04

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Solution

The fourth proportional to 7,640.28, 10,543.32 and 4,655.04 is: 6,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.28 : 10,543.32 = 4,655.04 : x
  2. Step 2: Convert to fraction form
    7,640.28/10,543.32 = 4,655.04/x
  3. Step 3: Cross multiply
    7,640.28x = 10,543.32 × 4,655.04
  4. Step 4: Simplify right side
    7,640.28x = 49,079,576.33
  5. Step 5: Solve for x
    x = 49,079,576.33/7,640.28
  6. Step 6: Final answer
    x = 6,423.79

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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.