Home / 1,445.51-2,167.45-623.12

Finding the Fourth Proportional to 1,445.51, 2,167.45 and 623.12

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Solution

The fourth proportional to 1,445.51, 2,167.45 and 623.12 is: 934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.51 : 2,167.45 = 623.12 : x
  2. Step 2: Convert to fraction form
    1,445.51/2,167.45 = 623.12/x
  3. Step 3: Cross multiply
    1,445.51x = 2,167.45 × 623.12
  4. Step 4: Simplify right side
    1,445.51x = 1,350,569.05
  5. Step 5: Solve for x
    x = 1,350,569.05/1,445.51
  6. Step 6: Final answer
    x = 934.32

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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.