Home / 2,988.99-4,484.96-2,117.10

Finding the Fourth Proportional to 2,988.99, 4,484.96 and 2,117.10

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Solution

The fourth proportional to 2,988.99, 4,484.96 and 2,117.10 is: 3,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.99 : 4,484.96 = 2,117.10 : x
  2. Step 2: Convert to fraction form
    2,988.99/4,484.96 = 2,117.10/x
  3. Step 3: Cross multiply
    2,988.99x = 4,484.96 × 2,117.10
  4. Step 4: Simplify right side
    2,988.99x = 9,495,098.23
  5. Step 5: Solve for x
    x = 9,495,098.23/2,988.99
  6. Step 6: Final answer
    x = 3,176.69

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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.