Home / 1,445.71-2,153.63-1,356.07

Finding the Fourth Proportional to 1,445.71, 2,153.63 and 1,356.07

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Solution

The fourth proportional to 1,445.71, 2,153.63 and 1,356.07 is: 2,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.71 : 2,153.63 = 1,356.07 : x
  2. Step 2: Convert to fraction form
    1,445.71/2,153.63 = 1,356.07/x
  3. Step 3: Cross multiply
    1,445.71x = 2,153.63 × 1,356.07
  4. Step 4: Simplify right side
    1,445.71x = 2,920,473.03
  5. Step 5: Solve for x
    x = 2,920,473.03/1,445.71
  6. Step 6: Final answer
    x = 2,020.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.