Home / 1,416.10-2,124.15-1,387.30

Finding the Fourth Proportional to 1,416.10, 2,124.15 and 1,387.30

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Solution

The fourth proportional to 1,416.10, 2,124.15 and 1,387.30 is: 2,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.10 : 2,124.15 = 1,387.30 : x
  2. Step 2: Convert to fraction form
    1,416.10/2,124.15 = 1,387.30/x
  3. Step 3: Cross multiply
    1,416.10x = 2,124.15 × 1,387.30
  4. Step 4: Simplify right side
    1,416.10x = 2,946,833.30
  5. Step 5: Solve for x
    x = 2,946,833.30/1,416.10
  6. Step 6: Final answer
    x = 2,080.95

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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.