Home / 1,557.30-2,144.58-1,458.48

Finding the Fourth Proportional to 1,557.30, 2,144.58 and 1,458.48

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Solution

The fourth proportional to 1,557.30, 2,144.58 and 1,458.48 is: 2,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.30 : 2,144.58 = 1,458.48 : x
  2. Step 2: Convert to fraction form
    1,557.30/2,144.58 = 1,458.48/x
  3. Step 3: Cross multiply
    1,557.30x = 2,144.58 × 1,458.48
  4. Step 4: Simplify right side
    1,557.30x = 3,127,827.04
  5. Step 5: Solve for x
    x = 3,127,827.04/1,557.30
  6. Step 6: Final answer
    x = 2,008.49

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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.