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Finding the Fourth Proportional to 3,442.55, 4,750.74 and 1,870.64

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Solution

The fourth proportional to 3,442.55, 4,750.74 and 1,870.64 is: 2,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.55 : 4,750.74 = 1,870.64 : x
  2. Step 2: Convert to fraction form
    3,442.55/4,750.74 = 1,870.64/x
  3. Step 3: Cross multiply
    3,442.55x = 4,750.74 × 1,870.64
  4. Step 4: Simplify right side
    3,442.55x = 8,886,931.29
  5. Step 5: Solve for x
    x = 8,886,931.29/3,442.55
  6. Step 6: Final answer
    x = 2,581.50

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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.