Home / 1,117.13-1,541.66-675.05

Finding the Fourth Proportional to 1,117.13, 1,541.66 and 675.05

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Solution

The fourth proportional to 1,117.13, 1,541.66 and 675.05 is: 931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.13 : 1,541.66 = 675.05 : x
  2. Step 2: Convert to fraction form
    1,117.13/1,541.66 = 675.05/x
  3. Step 3: Cross multiply
    1,117.13x = 1,541.66 × 675.05
  4. Step 4: Simplify right side
    1,117.13x = 1,040,686.50
  5. Step 5: Solve for x
    x = 1,040,686.50/1,117.13
  6. Step 6: Final answer
    x = 931.58

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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.