Home / 2,487.36-3,432.65-1,368.39

Finding the Fourth Proportional to 2,487.36, 3,432.65 and 1,368.39

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Solution

The fourth proportional to 2,487.36, 3,432.65 and 1,368.39 is: 1,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.36 : 3,432.65 = 1,368.39 : x
  2. Step 2: Convert to fraction form
    2,487.36/3,432.65 = 1,368.39/x
  3. Step 3: Cross multiply
    2,487.36x = 3,432.65 × 1,368.39
  4. Step 4: Simplify right side
    2,487.36x = 4,697,186.77
  5. Step 5: Solve for x
    x = 4,697,186.77/2,487.36
  6. Step 6: Final answer
    x = 1,888.42

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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.