Home / 3,014.32-4,521.54-1,980.91

Finding the Fourth Proportional to 3,014.32, 4,521.54 and 1,980.91

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Solution

The fourth proportional to 3,014.32, 4,521.54 and 1,980.91 is: 2,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.32 : 4,521.54 = 1,980.91 : x
  2. Step 2: Convert to fraction form
    3,014.32/4,521.54 = 1,980.91/x
  3. Step 3: Cross multiply
    3,014.32x = 4,521.54 × 1,980.91
  4. Step 4: Simplify right side
    3,014.32x = 8,956,763.80
  5. Step 5: Solve for x
    x = 8,956,763.80/3,014.32
  6. Step 6: Final answer
    x = 2,971.40

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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.