Home / 1,931.49-2,665.40-1,092.22

Finding the Fourth Proportional to 1,931.49, 2,665.40 and 1,092.22

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Solution

The fourth proportional to 1,931.49, 2,665.40 and 1,092.22 is: 1,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.49 : 2,665.40 = 1,092.22 : x
  2. Step 2: Convert to fraction form
    1,931.49/2,665.40 = 1,092.22/x
  3. Step 3: Cross multiply
    1,931.49x = 2,665.40 × 1,092.22
  4. Step 4: Simplify right side
    1,931.49x = 2,911,203.19
  5. Step 5: Solve for x
    x = 2,911,203.19/1,931.49
  6. Step 6: Final answer
    x = 1,507.23

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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.