Home / 1,117.19-1,541.23-675.01

Finding the Fourth Proportional to 1,117.19, 1,541.23 and 675.01

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Solution

The fourth proportional to 1,117.19, 1,541.23 and 675.01 is: 931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.19 : 1,541.23 = 675.01 : x
  2. Step 2: Convert to fraction form
    1,117.19/1,541.23 = 675.01/x
  3. Step 3: Cross multiply
    1,117.19x = 1,541.23 × 675.01
  4. Step 4: Simplify right side
    1,117.19x = 1,040,341.57
  5. Step 5: Solve for x
    x = 1,040,341.57/1,117.19
  6. Step 6: Final answer
    x = 931.21

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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.