Home / 2,543.31-3,509.75-1,424.24

Finding the Fourth Proportional to 2,543.31, 3,509.75 and 1,424.24

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Solution

The fourth proportional to 2,543.31, 3,509.75 and 1,424.24 is: 1,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.31 : 3,509.75 = 1,424.24 : x
  2. Step 2: Convert to fraction form
    2,543.31/3,509.75 = 1,424.24/x
  3. Step 3: Cross multiply
    2,543.31x = 3,509.75 × 1,424.24
  4. Step 4: Simplify right side
    2,543.31x = 4,998,701.67
  5. Step 5: Solve for x
    x = 4,998,701.67/2,543.31
  6. Step 6: Final answer
    x = 1,965.43

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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.