Home / 1,655.90-2,280.13-1,619.45

Finding the Fourth Proportional to 1,655.90, 2,280.13 and 1,619.45

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Solution

The fourth proportional to 1,655.90, 2,280.13 and 1,619.45 is: 2,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.90 : 2,280.13 = 1,619.45 : x
  2. Step 2: Convert to fraction form
    1,655.90/2,280.13 = 1,619.45/x
  3. Step 3: Cross multiply
    1,655.90x = 2,280.13 × 1,619.45
  4. Step 4: Simplify right side
    1,655.90x = 3,692,541.08
  5. Step 5: Solve for x
    x = 3,692,541.08/1,655.90
  6. Step 6: Final answer
    x = 2,229.94

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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.