Home / 1,312.20-1,966.38-1,095.24

Finding the Fourth Proportional to 1,312.20, 1,966.38 and 1,095.24

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Solution

The fourth proportional to 1,312.20, 1,966.38 and 1,095.24 is: 1,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.20 : 1,966.38 = 1,095.24 : x
  2. Step 2: Convert to fraction form
    1,312.20/1,966.38 = 1,095.24/x
  3. Step 3: Cross multiply
    1,312.20x = 1,966.38 × 1,095.24
  4. Step 4: Simplify right side
    1,312.20x = 2,153,658.03
  5. Step 5: Solve for x
    x = 2,153,658.03/1,312.20
  6. Step 6: Final answer
    x = 1,641.26

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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.