Home / 1,465.33-2,193.90-916.15

Finding the Fourth Proportional to 1,465.33, 2,193.90 and 916.15

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Solution

The fourth proportional to 1,465.33, 2,193.90 and 916.15 is: 1,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.33 : 2,193.90 = 916.15 : x
  2. Step 2: Convert to fraction form
    1,465.33/2,193.90 = 916.15/x
  3. Step 3: Cross multiply
    1,465.33x = 2,193.90 × 916.15
  4. Step 4: Simplify right side
    1,465.33x = 2,009,941.49
  5. Step 5: Solve for x
    x = 2,009,941.49/1,465.33
  6. Step 6: Final answer
    x = 1,371.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.