Home / 3,153.36-4,724.64-1,688.16

Finding the Fourth Proportional to 3,153.36, 4,724.64 and 1,688.16

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Solution

The fourth proportional to 3,153.36, 4,724.64 and 1,688.16 is: 2,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.36 : 4,724.64 = 1,688.16 : x
  2. Step 2: Convert to fraction form
    3,153.36/4,724.64 = 1,688.16/x
  3. Step 3: Cross multiply
    3,153.36x = 4,724.64 × 1,688.16
  4. Step 4: Simplify right side
    3,153.36x = 7,975,948.26
  5. Step 5: Solve for x
    x = 7,975,948.26/3,153.36
  6. Step 6: Final answer
    x = 2,529.35

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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.