Home / 7,615.40-11,423.91-2,420.06

Finding the Fourth Proportional to 7,615.40, 11,423.91 and 2,420.06

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Solution

The fourth proportional to 7,615.40, 11,423.91 and 2,420.06 is: 3,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.40 : 11,423.91 = 2,420.06 : x
  2. Step 2: Convert to fraction form
    7,615.40/11,423.91 = 2,420.06/x
  3. Step 3: Cross multiply
    7,615.40x = 11,423.91 × 2,420.06
  4. Step 4: Simplify right side
    7,615.40x = 27,646,547.63
  5. Step 5: Solve for x
    x = 27,646,547.63/7,615.40
  6. Step 6: Final answer
    x = 3,630.35

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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.