Home / 1,491.90-2,058.54-1,118.08

Finding the Fourth Proportional to 1,491.90, 2,058.54 and 1,118.08

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Solution

The fourth proportional to 1,491.90, 2,058.54 and 1,118.08 is: 1,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.90 : 2,058.54 = 1,118.08 : x
  2. Step 2: Convert to fraction form
    1,491.90/2,058.54 = 1,118.08/x
  3. Step 3: Cross multiply
    1,491.90x = 2,058.54 × 1,118.08
  4. Step 4: Simplify right side
    1,491.90x = 2,301,612.40
  5. Step 5: Solve for x
    x = 2,301,612.40/1,491.90
  6. Step 6: Final answer
    x = 1,542.74

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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.