Home / 2,421.35-3,630.38-1,250.87

Finding the Fourth Proportional to 2,421.35, 3,630.38 and 1,250.87

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Solution

The fourth proportional to 2,421.35, 3,630.38 and 1,250.87 is: 1,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.35 : 3,630.38 = 1,250.87 : x
  2. Step 2: Convert to fraction form
    2,421.35/3,630.38 = 1,250.87/x
  3. Step 3: Cross multiply
    2,421.35x = 3,630.38 × 1,250.87
  4. Step 4: Simplify right side
    2,421.35x = 4,541,127.18
  5. Step 5: Solve for x
    x = 4,541,127.18/2,421.35
  6. Step 6: Final answer
    x = 1,875.45

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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.