Home / 4,423.72-6,636.30-1,345

Finding the Fourth Proportional to 4,423.72, 6,636.30 and 1,345

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Solution

The fourth proportional to 4,423.72, 6,636.30 and 1,345 is: 2,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,423.72 : 6,636.30 = 1,345 : x
  2. Step 2: Convert to fraction form
    4,423.72/6,636.30 = 1,345/x
  3. Step 3: Cross multiply
    4,423.72x = 6,636.30 × 1,345
  4. Step 4: Simplify right side
    4,423.72x = 8,925,823.50
  5. Step 5: Solve for x
    x = 8,925,823.50/4,423.72
  6. Step 6: Final answer
    x = 2,017.72

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Double scale
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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.