Home / 2,515.68-3,772.08-1,053.60

Finding the Fourth Proportional to 2,515.68, 3,772.08 and 1,053.60

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Solution

The fourth proportional to 2,515.68, 3,772.08 and 1,053.60 is: 1,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.68 : 3,772.08 = 1,053.60 : x
  2. Step 2: Convert to fraction form
    2,515.68/3,772.08 = 1,053.60/x
  3. Step 3: Cross multiply
    2,515.68x = 3,772.08 × 1,053.60
  4. Step 4: Simplify right side
    2,515.68x = 3,974,263.49
  5. Step 5: Solve for x
    x = 3,974,263.49/2,515.68
  6. Step 6: Final answer
    x = 1,579.80

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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.