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Finding the Fourth Proportional to 4,899.84, 6,742.02 and 4,783.20

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Solution

The fourth proportional to 4,899.84, 6,742.02 and 4,783.20 is: 6,581.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.84 : 6,742.02 = 4,783.20 : x
  2. Step 2: Convert to fraction form
    4,899.84/6,742.02 = 4,783.20/x
  3. Step 3: Cross multiply
    4,899.84x = 6,742.02 × 4,783.20
  4. Step 4: Simplify right side
    4,899.84x = 32,248,430.06
  5. Step 5: Solve for x
    x = 32,248,430.06/4,899.84
  6. Step 6: Final answer
    x = 6,581.53

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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.