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Finding the Fourth Proportional to 4,870.16, 7,285.08 and 3,898.16

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Solution

The fourth proportional to 4,870.16, 7,285.08 and 3,898.16 is: 5,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.16 : 7,285.08 = 3,898.16 : x
  2. Step 2: Convert to fraction form
    4,870.16/7,285.08 = 3,898.16/x
  3. Step 3: Cross multiply
    4,870.16x = 7,285.08 × 3,898.16
  4. Step 4: Simplify right side
    4,870.16x = 28,398,407.45
  5. Step 5: Solve for x
    x = 28,398,407.45/4,870.16
  6. Step 6: Final answer
    x = 5,831.10

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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.