Home / 7,490.78-10,337.75-4,305.10

Finding the Fourth Proportional to 7,490.78, 10,337.75 and 4,305.10

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Solution

The fourth proportional to 7,490.78, 10,337.75 and 4,305.10 is: 5,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.78 : 10,337.75 = 4,305.10 : x
  2. Step 2: Convert to fraction form
    7,490.78/10,337.75 = 4,305.10/x
  3. Step 3: Cross multiply
    7,490.78x = 10,337.75 × 4,305.10
  4. Step 4: Simplify right side
    7,490.78x = 44,504,974.31
  5. Step 5: Solve for x
    x = 44,504,974.31/7,490.78
  6. Step 6: Final answer
    x = 5,941.30

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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.