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Finding the Fourth Proportional to 2,873.61, 4,307.31 and 1,830.33

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Solution

The fourth proportional to 2,873.61, 4,307.31 and 1,830.33 is: 2,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.61 : 4,307.31 = 1,830.33 : x
  2. Step 2: Convert to fraction form
    2,873.61/4,307.31 = 1,830.33/x
  3. Step 3: Cross multiply
    2,873.61x = 4,307.31 × 1,830.33
  4. Step 4: Simplify right side
    2,873.61x = 7,883,798.71
  5. Step 5: Solve for x
    x = 7,883,798.71/2,873.61
  6. Step 6: Final answer
    x = 2,743.52

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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.