Home / 2,655.79-3,665.98-2,281.26

Finding the Fourth Proportional to 2,655.79, 3,665.98 and 2,281.26

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Solution

The fourth proportional to 2,655.79, 3,665.98 and 2,281.26 is: 3,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.79 : 3,665.98 = 2,281.26 : x
  2. Step 2: Convert to fraction form
    2,655.79/3,665.98 = 2,281.26/x
  3. Step 3: Cross multiply
    2,655.79x = 3,665.98 × 2,281.26
  4. Step 4: Simplify right side
    2,655.79x = 8,363,053.53
  5. Step 5: Solve for x
    x = 8,363,053.53/2,655.79
  6. Step 6: Final answer
    x = 3,148.99

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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.