Home / 1,102.23-1,510.19-1,088.56

Finding the Fourth Proportional to 1,102.23, 1,510.19 and 1,088.56

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Solution

The fourth proportional to 1,102.23, 1,510.19 and 1,088.56 is: 1,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.23 : 1,510.19 = 1,088.56 : x
  2. Step 2: Convert to fraction form
    1,102.23/1,510.19 = 1,088.56/x
  3. Step 3: Cross multiply
    1,102.23x = 1,510.19 × 1,088.56
  4. Step 4: Simplify right side
    1,102.23x = 1,643,932.95
  5. Step 5: Solve for x
    x = 1,643,932.95/1,102.23
  6. Step 6: Final answer
    x = 1,491.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.