Home / 3,746.95-5,616.65-1,280.09

Finding the Fourth Proportional to 3,746.95, 5,616.65 and 1,280.09

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Solution

The fourth proportional to 3,746.95, 5,616.65 and 1,280.09 is: 1,918.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.95 : 5,616.65 = 1,280.09 : x
  2. Step 2: Convert to fraction form
    3,746.95/5,616.65 = 1,280.09/x
  3. Step 3: Cross multiply
    3,746.95x = 5,616.65 × 1,280.09
  4. Step 4: Simplify right side
    3,746.95x = 7,189,817.50
  5. Step 5: Solve for x
    x = 7,189,817.50/3,746.95
  6. Step 6: Final answer
    x = 1,918.85

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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.