Home / 1,655.32-2,280.73-1,235.50

Finding the Fourth Proportional to 1,655.32, 2,280.73 and 1,235.50

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Solution

The fourth proportional to 1,655.32, 2,280.73 and 1,235.50 is: 1,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.32 : 2,280.73 = 1,235.50 : x
  2. Step 2: Convert to fraction form
    1,655.32/2,280.73 = 1,235.50/x
  3. Step 3: Cross multiply
    1,655.32x = 2,280.73 × 1,235.50
  4. Step 4: Simplify right side
    1,655.32x = 2,817,841.92
  5. Step 5: Solve for x
    x = 2,817,841.92/1,655.32
  6. Step 6: Final answer
    x = 1,702.30

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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.