Home / 4,435.60-6,121.69-2,547.78

Finding the Fourth Proportional to 4,435.60, 6,121.69 and 2,547.78

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Solution

The fourth proportional to 4,435.60, 6,121.69 and 2,547.78 is: 3,516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,435.60 : 6,121.69 = 2,547.78 : x
  2. Step 2: Convert to fraction form
    4,435.60/6,121.69 = 2,547.78/x
  3. Step 3: Cross multiply
    4,435.60x = 6,121.69 × 2,547.78
  4. Step 4: Simplify right side
    4,435.60x = 15,596,719.35
  5. Step 5: Solve for x
    x = 15,596,719.35/4,435.60
  6. Step 6: Final answer
    x = 3,516.26

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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.