Home / 1,557.07-2,147.34-1,032.19

Finding the Fourth Proportional to 1,557.07, 2,147.34 and 1,032.19

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Solution

The fourth proportional to 1,557.07, 2,147.34 and 1,032.19 is: 1,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.07 : 2,147.34 = 1,032.19 : x
  2. Step 2: Convert to fraction form
    1,557.07/2,147.34 = 1,032.19/x
  3. Step 3: Cross multiply
    1,557.07x = 2,147.34 × 1,032.19
  4. Step 4: Simplify right side
    1,557.07x = 2,216,461.38
  5. Step 5: Solve for x
    x = 2,216,461.38/1,557.07
  6. Step 6: Final answer
    x = 1,423.48

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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.