Home / 3,439.79-4,746.90-1,867.88

Finding the Fourth Proportional to 3,439.79, 4,746.90 and 1,867.88

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Solution

The fourth proportional to 3,439.79, 4,746.90 and 1,867.88 is: 2,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.79 : 4,746.90 = 1,867.88 : x
  2. Step 2: Convert to fraction form
    3,439.79/4,746.90 = 1,867.88/x
  3. Step 3: Cross multiply
    3,439.79x = 4,746.90 × 1,867.88
  4. Step 4: Simplify right side
    3,439.79x = 8,866,615.84
  5. Step 5: Solve for x
    x = 8,866,615.84/3,439.79
  6. Step 6: Final answer
    x = 2,577.67

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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.