Home / 7,020.66-9,686.30-4,035.40

Finding the Fourth Proportional to 7,020.66, 9,686.30 and 4,035.40

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Solution

The fourth proportional to 7,020.66, 9,686.30 and 4,035.40 is: 5,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.66 : 9,686.30 = 4,035.40 : x
  2. Step 2: Convert to fraction form
    7,020.66/9,686.30 = 4,035.40/x
  3. Step 3: Cross multiply
    7,020.66x = 9,686.30 × 4,035.40
  4. Step 4: Simplify right side
    7,020.66x = 39,088,095.02
  5. Step 5: Solve for x
    x = 39,088,095.02/7,020.66
  6. Step 6: Final answer
    x = 5,567.58

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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.