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Finding the Fourth Proportional to 2,988.94, 4,483.41 and 1,345.18

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Solution

The fourth proportional to 2,988.94, 4,483.41 and 1,345.18 is: 2,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.94 : 4,483.41 = 1,345.18 : x
  2. Step 2: Convert to fraction form
    2,988.94/4,483.41 = 1,345.18/x
  3. Step 3: Cross multiply
    2,988.94x = 4,483.41 × 1,345.18
  4. Step 4: Simplify right side
    2,988.94x = 6,030,993.46
  5. Step 5: Solve for x
    x = 6,030,993.46/2,988.94
  6. Step 6: Final answer
    x = 2,017.77

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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.