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Finding the Fourth Proportional to 1,714.55, 2,366.08 and 928.60

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Solution

The fourth proportional to 1,714.55, 2,366.08 and 928.60 is: 1,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.55 : 2,366.08 = 928.60 : x
  2. Step 2: Convert to fraction form
    1,714.55/2,366.08 = 928.60/x
  3. Step 3: Cross multiply
    1,714.55x = 2,366.08 × 928.60
  4. Step 4: Simplify right side
    1,714.55x = 2,197,133.65
  5. Step 5: Solve for x
    x = 2,197,133.65/1,714.55
  6. Step 6: Final answer
    x = 1,281.46

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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.