Home / 7,561.60-11,342.40-3,457.60

Finding the Fourth Proportional to 7,561.60, 11,342.40 and 3,457.60

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Solution

The fourth proportional to 7,561.60, 11,342.40 and 3,457.60 is: 5,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.60 : 11,342.40 = 3,457.60 : x
  2. Step 2: Convert to fraction form
    7,561.60/11,342.40 = 3,457.60/x
  3. Step 3: Cross multiply
    7,561.60x = 11,342.40 × 3,457.60
  4. Step 4: Simplify right side
    7,561.60x = 39,217,482.24
  5. Step 5: Solve for x
    x = 39,217,482.24/7,561.60
  6. Step 6: Final answer
    x = 5,186.40

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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.