Home / 7,278.32-10,045.08-4,135.92

Finding the Fourth Proportional to 7,278.32, 10,045.08 and 4,135.92

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Solution

The fourth proportional to 7,278.32, 10,045.08 and 4,135.92 is: 5,708.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.32 : 10,045.08 = 4,135.92 : x
  2. Step 2: Convert to fraction form
    7,278.32/10,045.08 = 4,135.92/x
  3. Step 3: Cross multiply
    7,278.32x = 10,045.08 × 4,135.92
  4. Step 4: Simplify right side
    7,278.32x = 41,545,647.27
  5. Step 5: Solve for x
    x = 41,545,647.27/7,278.32
  6. Step 6: Final answer
    x = 5,708.14

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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.