Home / 1,560.90-2,342.72-1,216.45

Finding the Fourth Proportional to 1,560.90, 2,342.72 and 1,216.45

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Solution

The fourth proportional to 1,560.90, 2,342.72 and 1,216.45 is: 1,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.90 : 2,342.72 = 1,216.45 : x
  2. Step 2: Convert to fraction form
    1,560.90/2,342.72 = 1,216.45/x
  3. Step 3: Cross multiply
    1,560.90x = 2,342.72 × 1,216.45
  4. Step 4: Simplify right side
    1,560.90x = 2,849,783.95
  5. Step 5: Solve for x
    x = 2,849,783.95/1,560.90
  6. Step 6: Final answer
    x = 1,825.73

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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.