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Finding the Fourth Proportional to 2,680.68, 4,021.20 and 1,510.68

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Solution

The fourth proportional to 2,680.68, 4,021.20 and 1,510.68 is: 2,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.68 : 4,021.20 = 1,510.68 : x
  2. Step 2: Convert to fraction form
    2,680.68/4,021.20 = 1,510.68/x
  3. Step 3: Cross multiply
    2,680.68x = 4,021.20 × 1,510.68
  4. Step 4: Simplify right side
    2,680.68x = 6,074,746.42
  5. Step 5: Solve for x
    x = 6,074,746.42/2,680.68
  6. Step 6: Final answer
    x = 2,266.12

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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.