Home / 1,861.02-2,567.58-1,074.78

Finding the Fourth Proportional to 1,861.02, 2,567.58 and 1,074.78

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Solution

The fourth proportional to 1,861.02, 2,567.58 and 1,074.78 is: 1,482.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.02 : 2,567.58 = 1,074.78 : x
  2. Step 2: Convert to fraction form
    1,861.02/2,567.58 = 1,074.78/x
  3. Step 3: Cross multiply
    1,861.02x = 2,567.58 × 1,074.78
  4. Step 4: Simplify right side
    1,861.02x = 2,759,583.63
  5. Step 5: Solve for x
    x = 2,759,583.63/1,861.02
  6. Step 6: Final answer
    x = 1,482.83

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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.