Home / 1,547.51-2,324.67-931.57

Finding the Fourth Proportional to 1,547.51, 2,324.67 and 931.57

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Solution

The fourth proportional to 1,547.51, 2,324.67 and 931.57 is: 1,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.51 : 2,324.67 = 931.57 : x
  2. Step 2: Convert to fraction form
    1,547.51/2,324.67 = 931.57/x
  3. Step 3: Cross multiply
    1,547.51x = 2,324.67 × 931.57
  4. Step 4: Simplify right side
    1,547.51x = 2,165,583.53
  5. Step 5: Solve for x
    x = 2,165,583.53/1,547.51
  6. Step 6: Final answer
    x = 1,399.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.