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Finding the Fourth Proportional to 1,888.10, 2,602.71 and 1,327.68

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Solution

The fourth proportional to 1,888.10, 2,602.71 and 1,327.68 is: 1,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.10 : 2,602.71 = 1,327.68 : x
  2. Step 2: Convert to fraction form
    1,888.10/2,602.71 = 1,327.68/x
  3. Step 3: Cross multiply
    1,888.10x = 2,602.71 × 1,327.68
  4. Step 4: Simplify right side
    1,888.10x = 3,455,566.01
  5. Step 5: Solve for x
    x = 3,455,566.01/1,888.10
  6. Step 6: Final answer
    x = 1,830.18

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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.