Home / 2,487.32-3,432.58-1,368.34

Finding the Fourth Proportional to 2,487.32, 3,432.58 and 1,368.34

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Solution

The fourth proportional to 2,487.32, 3,432.58 and 1,368.34 is: 1,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.32 : 3,432.58 = 1,368.34 : x
  2. Step 2: Convert to fraction form
    2,487.32/3,432.58 = 1,368.34/x
  3. Step 3: Cross multiply
    2,487.32x = 3,432.58 × 1,368.34
  4. Step 4: Simplify right side
    2,487.32x = 4,696,919.35
  5. Step 5: Solve for x
    x = 4,696,919.35/2,487.32
  6. Step 6: Final answer
    x = 1,888.35

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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.