Home / 1,625.02-2,241.98-916.78

Finding the Fourth Proportional to 1,625.02, 2,241.98 and 916.78

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Solution

The fourth proportional to 1,625.02, 2,241.98 and 916.78 is: 1,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.02 : 2,241.98 = 916.78 : x
  2. Step 2: Convert to fraction form
    1,625.02/2,241.98 = 916.78/x
  3. Step 3: Cross multiply
    1,625.02x = 2,241.98 × 916.78
  4. Step 4: Simplify right side
    1,625.02x = 2,055,386.63
  5. Step 5: Solve for x
    x = 2,055,386.63/1,625.02
  6. Step 6: Final answer
    x = 1,264.84

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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.