Home / 4,989.65-7,465.67-2,980.90

Finding the Fourth Proportional to 4,989.65, 7,465.67 and 2,980.90

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Solution

The fourth proportional to 4,989.65, 7,465.67 and 2,980.90 is: 4,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.65 : 7,465.67 = 2,980.90 : x
  2. Step 2: Convert to fraction form
    4,989.65/7,465.67 = 2,980.90/x
  3. Step 3: Cross multiply
    4,989.65x = 7,465.67 × 2,980.90
  4. Step 4: Simplify right side
    4,989.65x = 22,254,421.31
  5. Step 5: Solve for x
    x = 22,254,421.31/4,989.65
  6. Step 6: Final answer
    x = 4,460.12

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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.