Home / 5,038.21-6,946.05-4,138.57

Finding the Fourth Proportional to 5,038.21, 6,946.05 and 4,138.57

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Solution

The fourth proportional to 5,038.21, 6,946.05 and 4,138.57 is: 5,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.21 : 6,946.05 = 4,138.57 : x
  2. Step 2: Convert to fraction form
    5,038.21/6,946.05 = 4,138.57/x
  3. Step 3: Cross multiply
    5,038.21x = 6,946.05 × 4,138.57
  4. Step 4: Simplify right side
    5,038.21x = 28,746,714.15
  5. Step 5: Solve for x
    x = 28,746,714.15/5,038.21
  6. Step 6: Final answer
    x = 5,705.74

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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.