Home / 6,742.58-9,303.75-3,870.90

Finding the Fourth Proportional to 6,742.58, 9,303.75 and 3,870.90

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Solution

The fourth proportional to 6,742.58, 9,303.75 and 3,870.90 is: 5,341.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.58 : 9,303.75 = 3,870.90 : x
  2. Step 2: Convert to fraction form
    6,742.58/9,303.75 = 3,870.90/x
  3. Step 3: Cross multiply
    6,742.58x = 9,303.75 × 3,870.90
  4. Step 4: Simplify right side
    6,742.58x = 36,013,885.88
  5. Step 5: Solve for x
    x = 36,013,885.88/6,742.58
  6. Step 6: Final answer
    x = 5,341.26

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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.