Home / 2,356.40-3,244.92-2,159.28

Finding the Fourth Proportional to 2,356.40, 3,244.92 and 2,159.28

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Solution

The fourth proportional to 2,356.40, 3,244.92 and 2,159.28 is: 2,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.40 : 3,244.92 = 2,159.28 : x
  2. Step 2: Convert to fraction form
    2,356.40/3,244.92 = 2,159.28/x
  3. Step 3: Cross multiply
    2,356.40x = 3,244.92 × 2,159.28
  4. Step 4: Simplify right side
    2,356.40x = 7,006,690.86
  5. Step 5: Solve for x
    x = 7,006,690.86/2,356.40
  6. Step 6: Final answer
    x = 2,973.47

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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.