Home / 7,577.80-10,457.51-4,220.91

Finding the Fourth Proportional to 7,577.80, 10,457.51 and 4,220.91

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Solution

The fourth proportional to 7,577.80, 10,457.51 and 4,220.91 is: 5,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.80 : 10,457.51 = 4,220.91 : x
  2. Step 2: Convert to fraction form
    7,577.80/10,457.51 = 4,220.91/x
  3. Step 3: Cross multiply
    7,577.80x = 10,457.51 × 4,220.91
  4. Step 4: Simplify right side
    7,577.80x = 44,140,187.43
  5. Step 5: Solve for x
    x = 44,140,187.43/7,577.80
  6. Step 6: Final answer
    x = 5,824.93

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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.