Home / 1,732.02-2,390.32-986.22

Finding the Fourth Proportional to 1,732.02, 2,390.32 and 986.22

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Solution

The fourth proportional to 1,732.02, 2,390.32 and 986.22 is: 1,361.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.02 : 2,390.32 = 986.22 : x
  2. Step 2: Convert to fraction form
    1,732.02/2,390.32 = 986.22/x
  3. Step 3: Cross multiply
    1,732.02x = 2,390.32 × 986.22
  4. Step 4: Simplify right side
    1,732.02x = 2,357,381.39
  5. Step 5: Solve for x
    x = 2,357,381.39/1,732.02
  6. Step 6: Final answer
    x = 1,361.06

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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.