Home / 7,538.45-11,307.68-2,605.40

Finding the Fourth Proportional to 7,538.45, 11,307.68 and 2,605.40

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Solution

The fourth proportional to 7,538.45, 11,307.68 and 2,605.40 is: 3,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.45 : 11,307.68 = 2,605.40 : x
  2. Step 2: Convert to fraction form
    7,538.45/11,307.68 = 2,605.40/x
  3. Step 3: Cross multiply
    7,538.45x = 11,307.68 × 2,605.40
  4. Step 4: Simplify right side
    7,538.45x = 29,461,026.74
  5. Step 5: Solve for x
    x = 29,461,026.74/7,538.45
  6. Step 6: Final answer
    x = 3,908.10

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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.