Home / 7,490.81-10,337.20-4,087.79

Finding the Fourth Proportional to 7,490.81, 10,337.20 and 4,087.79

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Solution

The fourth proportional to 7,490.81, 10,337.20 and 4,087.79 is: 5,641.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.81 : 10,337.20 = 4,087.79 : x
  2. Step 2: Convert to fraction form
    7,490.81/10,337.20 = 4,087.79/x
  3. Step 3: Cross multiply
    7,490.81x = 10,337.20 × 4,087.79
  4. Step 4: Simplify right side
    7,490.81x = 42,256,302.79
  5. Step 5: Solve for x
    x = 42,256,302.79/7,490.81
  6. Step 6: Final answer
    x = 5,641.09

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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.