Home / 1,153.32-1,719.95-1,088.63

Finding the Fourth Proportional to 1,153.32, 1,719.95 and 1,088.63

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Solution

The fourth proportional to 1,153.32, 1,719.95 and 1,088.63 is: 1,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.32 : 1,719.95 = 1,088.63 : x
  2. Step 2: Convert to fraction form
    1,153.32/1,719.95 = 1,088.63/x
  3. Step 3: Cross multiply
    1,153.32x = 1,719.95 × 1,088.63
  4. Step 4: Simplify right side
    1,153.32x = 1,872,375.13
  5. Step 5: Solve for x
    x = 1,872,375.13/1,153.32
  6. Step 6: Final answer
    x = 1,623.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.