Home / 4,214.80-5,810.43-2,886.40

Finding the Fourth Proportional to 4,214.80, 5,810.43 and 2,886.40

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Solution

The fourth proportional to 4,214.80, 5,810.43 and 2,886.40 is: 3,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.80 : 5,810.43 = 2,886.40 : x
  2. Step 2: Convert to fraction form
    4,214.80/5,810.43 = 2,886.40/x
  3. Step 3: Cross multiply
    4,214.80x = 5,810.43 × 2,886.40
  4. Step 4: Simplify right side
    4,214.80x = 16,771,225.15
  5. Step 5: Solve for x
    x = 16,771,225.15/4,214.80
  6. Step 6: Final answer
    x = 3,979.13

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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.