Home / 1,560.20-2,153.31-970.93

Finding the Fourth Proportional to 1,560.20, 2,153.31 and 970.93

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Solution

The fourth proportional to 1,560.20, 2,153.31 and 970.93 is: 1,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.20 : 2,153.31 = 970.93 : x
  2. Step 2: Convert to fraction form
    1,560.20/2,153.31 = 970.93/x
  3. Step 3: Cross multiply
    1,560.20x = 2,153.31 × 970.93
  4. Step 4: Simplify right side
    1,560.20x = 2,090,713.28
  5. Step 5: Solve for x
    x = 2,090,713.28/1,560.20
  6. Step 6: Final answer
    x = 1,340.03

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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.