Home / 6,457.83-9,686.40-1,777.77

Finding the Fourth Proportional to 6,457.83, 9,686.40 and 1,777.77

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Solution

The fourth proportional to 6,457.83, 9,686.40 and 1,777.77 is: 2,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.83 : 9,686.40 = 1,777.77 : x
  2. Step 2: Convert to fraction form
    6,457.83/9,686.40 = 1,777.77/x
  3. Step 3: Cross multiply
    6,457.83x = 9,686.40 × 1,777.77
  4. Step 4: Simplify right side
    6,457.83x = 17,220,191.33
  5. Step 5: Solve for x
    x = 17,220,191.33/6,457.83
  6. Step 6: Final answer
    x = 2,666.56

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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.