Home / 1,543.04-2,129.21-1,229.10

Finding the Fourth Proportional to 1,543.04, 2,129.21 and 1,229.10

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Solution

The fourth proportional to 1,543.04, 2,129.21 and 1,229.10 is: 1,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.04 : 2,129.21 = 1,229.10 : x
  2. Step 2: Convert to fraction form
    1,543.04/2,129.21 = 1,229.10/x
  3. Step 3: Cross multiply
    1,543.04x = 2,129.21 × 1,229.10
  4. Step 4: Simplify right side
    1,543.04x = 2,617,005.87
  5. Step 5: Solve for x
    x = 2,617,005.87/1,543.04
  6. Step 6: Final answer
    x = 1,696.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.