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Finding the Fourth Proportional to 1,888.48, 2,830.88 and 1,542.56

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Solution

The fourth proportional to 1,888.48, 2,830.88 and 1,542.56 is: 2,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.48 : 2,830.88 = 1,542.56 : x
  2. Step 2: Convert to fraction form
    1,888.48/2,830.88 = 1,542.56/x
  3. Step 3: Cross multiply
    1,888.48x = 2,830.88 × 1,542.56
  4. Step 4: Simplify right side
    1,888.48x = 4,366,802.25
  5. Step 5: Solve for x
    x = 4,366,802.25/1,888.48
  6. Step 6: Final answer
    x = 2,312.34

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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.