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Finding the Fourth Proportional to 2,346.40, 3,520.05 and 702.91

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Solution

The fourth proportional to 2,346.40, 3,520.05 and 702.91 is: 1,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.40 : 3,520.05 = 702.91 : x
  2. Step 2: Convert to fraction form
    2,346.40/3,520.05 = 702.91/x
  3. Step 3: Cross multiply
    2,346.40x = 3,520.05 × 702.91
  4. Step 4: Simplify right side
    2,346.40x = 2,474,278.35
  5. Step 5: Solve for x
    x = 2,474,278.35/2,346.40
  6. Step 6: Final answer
    x = 1,054.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.