Home / 2,543.16-3,509.65-1,424.15

Finding the Fourth Proportional to 2,543.16, 3,509.65 and 1,424.15

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Solution

The fourth proportional to 2,543.16, 3,509.65 and 1,424.15 is: 1,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.16 : 3,509.65 = 1,424.15 : x
  2. Step 2: Convert to fraction form
    2,543.16/3,509.65 = 1,424.15/x
  3. Step 3: Cross multiply
    2,543.16x = 3,509.65 × 1,424.15
  4. Step 4: Simplify right side
    2,543.16x = 4,998,243.38
  5. Step 5: Solve for x
    x = 4,998,243.38/2,543.16
  6. Step 6: Final answer
    x = 1,965.37

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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.