Home / 1,510.68-2,079.98-1,372.28

Finding the Fourth Proportional to 1,510.68, 2,079.98 and 1,372.28

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Solution

The fourth proportional to 1,510.68, 2,079.98 and 1,372.28 is: 1,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.68 : 2,079.98 = 1,372.28 : x
  2. Step 2: Convert to fraction form
    1,510.68/2,079.98 = 1,372.28/x
  3. Step 3: Cross multiply
    1,510.68x = 2,079.98 × 1,372.28
  4. Step 4: Simplify right side
    1,510.68x = 2,854,302.84
  5. Step 5: Solve for x
    x = 2,854,302.84/1,510.68
  6. Step 6: Final answer
    x = 1,889.41

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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.