Home / 1,153.24-1,718.68-1,116.34

Finding the Fourth Proportional to 1,153.24, 1,718.68 and 1,116.34

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Solution

The fourth proportional to 1,153.24, 1,718.68 and 1,116.34 is: 1,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.24 : 1,718.68 = 1,116.34 : x
  2. Step 2: Convert to fraction form
    1,153.24/1,718.68 = 1,116.34/x
  3. Step 3: Cross multiply
    1,153.24x = 1,718.68 × 1,116.34
  4. Step 4: Simplify right side
    1,153.24x = 1,918,631.23
  5. Step 5: Solve for x
    x = 1,918,631.23/1,153.24
  6. Step 6: Final answer
    x = 1,663.69

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1.5x scale

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.