Home / 2,331.02-3,216.80-1,283.08

Finding the Fourth Proportional to 2,331.02, 3,216.80 and 1,283.08

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Solution

The fourth proportional to 2,331.02, 3,216.80 and 1,283.08 is: 1,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.02 : 3,216.80 = 1,283.08 : x
  2. Step 2: Convert to fraction form
    2,331.02/3,216.80 = 1,283.08/x
  3. Step 3: Cross multiply
    2,331.02x = 3,216.80 × 1,283.08
  4. Step 4: Simplify right side
    2,331.02x = 4,127,411.74
  5. Step 5: Solve for x
    x = 4,127,411.74/2,331.02
  6. Step 6: Final answer
    x = 1,770.65

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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.