Home / 1,543.48-2,324.40-1,391.20

Finding the Fourth Proportional to 1,543.48, 2,324.40 and 1,391.20

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Solution

The fourth proportional to 1,543.48, 2,324.40 and 1,391.20 is: 2,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.48 : 2,324.40 = 1,391.20 : x
  2. Step 2: Convert to fraction form
    1,543.48/2,324.40 = 1,391.20/x
  3. Step 3: Cross multiply
    1,543.48x = 2,324.40 × 1,391.20
  4. Step 4: Simplify right side
    1,543.48x = 3,233,705.28
  5. Step 5: Solve for x
    x = 3,233,705.28/1,543.48
  6. Step 6: Final answer
    x = 2,095.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.