Home / 7,039.86-9,701.40-5,358.61

Finding the Fourth Proportional to 7,039.86, 9,701.40 and 5,358.61

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Solution

The fourth proportional to 7,039.86, 9,701.40 and 5,358.61 is: 7,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.86 : 9,701.40 = 5,358.61 : x
  2. Step 2: Convert to fraction form
    7,039.86/9,701.40 = 5,358.61/x
  3. Step 3: Cross multiply
    7,039.86x = 9,701.40 × 5,358.61
  4. Step 4: Simplify right side
    7,039.86x = 51,985,951.49
  5. Step 5: Solve for x
    x = 51,985,951.49/7,039.86
  6. Step 6: Final answer
    x = 7,384.51

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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.