Home / 5,678.24-8,516.75-1,980.18

Finding the Fourth Proportional to 5,678.24, 8,516.75 and 1,980.18

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Solution

The fourth proportional to 5,678.24, 8,516.75 and 1,980.18 is: 2,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.24 : 8,516.75 = 1,980.18 : x
  2. Step 2: Convert to fraction form
    5,678.24/8,516.75 = 1,980.18/x
  3. Step 3: Cross multiply
    5,678.24x = 8,516.75 × 1,980.18
  4. Step 4: Simplify right side
    5,678.24x = 16,864,688.11
  5. Step 5: Solve for x
    x = 16,864,688.11/5,678.24
  6. Step 6: Final answer
    x = 2,970.06

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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.