Home / 1,715.68-2,569.88-1,455.06

Finding the Fourth Proportional to 1,715.68, 2,569.88 and 1,455.06

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Solution

The fourth proportional to 1,715.68, 2,569.88 and 1,455.06 is: 2,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.68 : 2,569.88 = 1,455.06 : x
  2. Step 2: Convert to fraction form
    1,715.68/2,569.88 = 1,455.06/x
  3. Step 3: Cross multiply
    1,715.68x = 2,569.88 × 1,455.06
  4. Step 4: Simplify right side
    1,715.68x = 3,739,334.68
  5. Step 5: Solve for x
    x = 3,739,334.68/1,715.68
  6. Step 6: Final answer
    x = 2,179.50

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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.