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Finding the Fourth Proportional to 5,087, 7,019.56 and 2,848.76

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Solution

The fourth proportional to 5,087, 7,019.56 and 2,848.76 is: 3,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087 : 7,019.56 = 2,848.76 : x
  2. Step 2: Convert to fraction form
    5,087/7,019.56 = 2,848.76/x
  3. Step 3: Cross multiply
    5,087x = 7,019.56 × 2,848.76
  4. Step 4: Simplify right side
    5,087x = 19,997,041.75
  5. Step 5: Solve for x
    x = 19,997,041.75/5,087
  6. Step 6: Final answer
    x = 3,931.01

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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.