Home / 3,903.59-5,386.91-2,225.07

Finding the Fourth Proportional to 3,903.59, 5,386.91 and 2,225.07

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Solution

The fourth proportional to 3,903.59, 5,386.91 and 2,225.07 is: 3,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.59 : 5,386.91 = 2,225.07 : x
  2. Step 2: Convert to fraction form
    3,903.59/5,386.91 = 2,225.07/x
  3. Step 3: Cross multiply
    3,903.59x = 5,386.91 × 2,225.07
  4. Step 4: Simplify right side
    3,903.59x = 11,986,240.71
  5. Step 5: Solve for x
    x = 11,986,240.71/3,903.59
  6. Step 6: Final answer
    x = 3,070.57

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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.