Home / 4,916.16-6,783.80-2,820.32

Finding the Fourth Proportional to 4,916.16, 6,783.80 and 2,820.32

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Solution

The fourth proportional to 4,916.16, 6,783.80 and 2,820.32 is: 3,891.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.16 : 6,783.80 = 2,820.32 : x
  2. Step 2: Convert to fraction form
    4,916.16/6,783.80 = 2,820.32/x
  3. Step 3: Cross multiply
    4,916.16x = 6,783.80 × 2,820.32
  4. Step 4: Simplify right side
    4,916.16x = 19,132,486.82
  5. Step 5: Solve for x
    x = 19,132,486.82/4,916.16
  6. Step 6: Final answer
    x = 3,891.75

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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.