Home / 1,702.08-2,348.32-1,038.72

Finding the Fourth Proportional to 1,702.08, 2,348.32 and 1,038.72

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Solution

The fourth proportional to 1,702.08, 2,348.32 and 1,038.72 is: 1,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.08 : 2,348.32 = 1,038.72 : x
  2. Step 2: Convert to fraction form
    1,702.08/2,348.32 = 1,038.72/x
  3. Step 3: Cross multiply
    1,702.08x = 2,348.32 × 1,038.72
  4. Step 4: Simplify right side
    1,702.08x = 2,439,246.95
  5. Step 5: Solve for x
    x = 2,439,246.95/1,702.08
  6. Step 6: Final answer
    x = 1,433.10

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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.