Home / 1,555.02-2,144.90-925.06

Finding the Fourth Proportional to 1,555.02, 2,144.90 and 925.06

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Solution

The fourth proportional to 1,555.02, 2,144.90 and 925.06 is: 1,275.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.02 : 2,144.90 = 925.06 : x
  2. Step 2: Convert to fraction form
    1,555.02/2,144.90 = 925.06/x
  3. Step 3: Cross multiply
    1,555.02x = 2,144.90 × 925.06
  4. Step 4: Simplify right side
    1,555.02x = 1,984,161.19
  5. Step 5: Solve for x
    x = 1,984,161.19/1,555.02
  6. Step 6: Final answer
    x = 1,275.97

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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.