Home / 3,127.95-4,689.09-1,153.08

Finding the Fourth Proportional to 3,127.95, 4,689.09 and 1,153.08

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Solution

The fourth proportional to 3,127.95, 4,689.09 and 1,153.08 is: 1,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.95 : 4,689.09 = 1,153.08 : x
  2. Step 2: Convert to fraction form
    3,127.95/4,689.09 = 1,153.08/x
  3. Step 3: Cross multiply
    3,127.95x = 4,689.09 × 1,153.08
  4. Step 4: Simplify right side
    3,127.95x = 5,406,895.90
  5. Step 5: Solve for x
    x = 5,406,895.90/3,127.95
  6. Step 6: Final answer
    x = 1,728.57

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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.