Home / 1,560.96-2,154.24-971.52

Finding the Fourth Proportional to 1,560.96, 2,154.24 and 971.52

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Solution

The fourth proportional to 1,560.96, 2,154.24 and 971.52 is: 1,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.96 : 2,154.24 = 971.52 : x
  2. Step 2: Convert to fraction form
    1,560.96/2,154.24 = 971.52/x
  3. Step 3: Cross multiply
    1,560.96x = 2,154.24 × 971.52
  4. Step 4: Simplify right side
    1,560.96x = 2,092,887.24
  5. Step 5: Solve for x
    x = 2,092,887.24/1,560.96
  6. Step 6: Final answer
    x = 1,340.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.