Home / 2,259.02-3,121.70-1,631.47

Finding the Fourth Proportional to 2,259.02, 3,121.70 and 1,631.47

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Solution

The fourth proportional to 2,259.02, 3,121.70 and 1,631.47 is: 2,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.02 : 3,121.70 = 1,631.47 : x
  2. Step 2: Convert to fraction form
    2,259.02/3,121.70 = 1,631.47/x
  3. Step 3: Cross multiply
    2,259.02x = 3,121.70 × 1,631.47
  4. Step 4: Simplify right side
    2,259.02x = 5,092,943.94
  5. Step 5: Solve for x
    x = 5,092,943.94/2,259.02
  6. Step 6: Final answer
    x = 2,254.50

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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.