Home / 3,437.50-5,156.62-1,245.74

Finding the Fourth Proportional to 3,437.50, 5,156.62 and 1,245.74

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Solution

The fourth proportional to 3,437.50, 5,156.62 and 1,245.74 is: 1,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.50 : 5,156.62 = 1,245.74 : x
  2. Step 2: Convert to fraction form
    3,437.50/5,156.62 = 1,245.74/x
  3. Step 3: Cross multiply
    3,437.50x = 5,156.62 × 1,245.74
  4. Step 4: Simplify right side
    3,437.50x = 6,423,807.80
  5. Step 5: Solve for x
    x = 6,423,807.80/3,437.50
  6. Step 6: Final answer
    x = 1,868.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.