Home / 2,928.70-4,390.98-1,466.80

Finding the Fourth Proportional to 2,928.70, 4,390.98 and 1,466.80

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Solution

The fourth proportional to 2,928.70, 4,390.98 and 1,466.80 is: 2,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.70 : 4,390.98 = 1,466.80 : x
  2. Step 2: Convert to fraction form
    2,928.70/4,390.98 = 1,466.80/x
  3. Step 3: Cross multiply
    2,928.70x = 4,390.98 × 1,466.80
  4. Step 4: Simplify right side
    2,928.70x = 6,440,689.46
  5. Step 5: Solve for x
    x = 6,440,689.46/2,928.70
  6. Step 6: Final answer
    x = 2,199.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.