Home / 2,946.85-4,419.59-1,387.93

Finding the Fourth Proportional to 2,946.85, 4,419.59 and 1,387.93

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Solution

The fourth proportional to 2,946.85, 4,419.59 and 1,387.93 is: 2,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.85 : 4,419.59 = 1,387.93 : x
  2. Step 2: Convert to fraction form
    2,946.85/4,419.59 = 1,387.93/x
  3. Step 3: Cross multiply
    2,946.85x = 4,419.59 × 1,387.93
  4. Step 4: Simplify right side
    2,946.85x = 6,134,063.32
  5. Step 5: Solve for x
    x = 6,134,063.32/2,946.85
  6. Step 6: Final answer
    x = 2,081.57

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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.