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Finding the Fourth Proportional to 1,510.76, 2,266.08 and 415.24

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Solution

The fourth proportional to 1,510.76, 2,266.08 and 415.24 is: 622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.76 : 2,266.08 = 415.24 : x
  2. Step 2: Convert to fraction form
    1,510.76/2,266.08 = 415.24/x
  3. Step 3: Cross multiply
    1,510.76x = 2,266.08 × 415.24
  4. Step 4: Simplify right side
    1,510.76x = 940,967.06
  5. Step 5: Solve for x
    x = 940,967.06/1,510.76
  6. Step 6: Final answer
    x = 622.84

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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.