Home / 1,655.94-2,283.68-1,281.72

Finding the Fourth Proportional to 1,655.94, 2,283.68 and 1,281.72

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Solution

The fourth proportional to 1,655.94, 2,283.68 and 1,281.72 is: 1,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.94 : 2,283.68 = 1,281.72 : x
  2. Step 2: Convert to fraction form
    1,655.94/2,283.68 = 1,281.72/x
  3. Step 3: Cross multiply
    1,655.94x = 2,283.68 × 1,281.72
  4. Step 4: Simplify right side
    1,655.94x = 2,927,041.53
  5. Step 5: Solve for x
    x = 2,927,041.53/1,655.94
  6. Step 6: Final answer
    x = 1,767.60

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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.