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Finding the Fourth Proportional to 2,888.93, 3,987.17 and 1,897.08

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Solution

The fourth proportional to 2,888.93, 3,987.17 and 1,897.08 is: 2,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.93 : 3,987.17 = 1,897.08 : x
  2. Step 2: Convert to fraction form
    2,888.93/3,987.17 = 1,897.08/x
  3. Step 3: Cross multiply
    2,888.93x = 3,987.17 × 1,897.08
  4. Step 4: Simplify right side
    2,888.93x = 7,563,980.46
  5. Step 5: Solve for x
    x = 7,563,980.46/2,888.93
  6. Step 6: Final answer
    x = 2,618.26

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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.