Home / 3,546.79-4,893.70-2,130.20

Finding the Fourth Proportional to 3,546.79, 4,893.70 and 2,130.20

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Solution

The fourth proportional to 3,546.79, 4,893.70 and 2,130.20 is: 2,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.79 : 4,893.70 = 2,130.20 : x
  2. Step 2: Convert to fraction form
    3,546.79/4,893.70 = 2,130.20/x
  3. Step 3: Cross multiply
    3,546.79x = 4,893.70 × 2,130.20
  4. Step 4: Simplify right side
    3,546.79x = 10,424,547.80
  5. Step 5: Solve for x
    x = 10,424,547.80/3,546.79
  6. Step 6: Final answer
    x = 2,939.15

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1.5x scale

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.