Home / 2,990.46-4,483.82-1,430.94

Finding the Fourth Proportional to 2,990.46, 4,483.82 and 1,430.94

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Solution

The fourth proportional to 2,990.46, 4,483.82 and 1,430.94 is: 2,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.46 : 4,483.82 = 1,430.94 : x
  2. Step 2: Convert to fraction form
    2,990.46/4,483.82 = 1,430.94/x
  3. Step 3: Cross multiply
    2,990.46x = 4,483.82 × 1,430.94
  4. Step 4: Simplify right side
    2,990.46x = 6,416,077.39
  5. Step 5: Solve for x
    x = 6,416,077.39/2,990.46
  6. Step 6: Final answer
    x = 2,145.52

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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.