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Finding the Fourth Proportional to 2,848.79, 4,271.63 and 999.74

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Solution

The fourth proportional to 2,848.79, 4,271.63 and 999.74 is: 1,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.79 : 4,271.63 = 999.74 : x
  2. Step 2: Convert to fraction form
    2,848.79/4,271.63 = 999.74/x
  3. Step 3: Cross multiply
    2,848.79x = 4,271.63 × 999.74
  4. Step 4: Simplify right side
    2,848.79x = 4,270,493.02
  5. Step 5: Solve for x
    x = 4,270,493.02/2,848.79
  6. Step 6: Final answer
    x = 1,499.06

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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.