Home / 1,417.15-2,125.76-836.24

Finding the Fourth Proportional to 1,417.15, 2,125.76 and 836.24

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Solution

The fourth proportional to 1,417.15, 2,125.76 and 836.24 is: 1,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.15 : 2,125.76 = 836.24 : x
  2. Step 2: Convert to fraction form
    1,417.15/2,125.76 = 836.24/x
  3. Step 3: Cross multiply
    1,417.15x = 2,125.76 × 836.24
  4. Step 4: Simplify right side
    1,417.15x = 1,777,630.73
  5. Step 5: Solve for x
    x = 1,777,630.73/1,417.15
  6. Step 6: Final answer
    x = 1,254.37

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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.