Home / 3,547.07-5,316.90-1,984.78

Finding the Fourth Proportional to 3,547.07, 5,316.90 and 1,984.78

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Solution

The fourth proportional to 3,547.07, 5,316.90 and 1,984.78 is: 2,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.07 : 5,316.90 = 1,984.78 : x
  2. Step 2: Convert to fraction form
    3,547.07/5,316.90 = 1,984.78/x
  3. Step 3: Cross multiply
    3,547.07x = 5,316.90 × 1,984.78
  4. Step 4: Simplify right side
    3,547.07x = 10,552,863.49
  5. Step 5: Solve for x
    x = 10,552,863.49/3,547.07
  6. Step 6: Final answer
    x = 2,975.10

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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.