Home / 5,313.92-7,970.81-2,390.16

Finding the Fourth Proportional to 5,313.92, 7,970.81 and 2,390.16

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Solution

The fourth proportional to 5,313.92, 7,970.81 and 2,390.16 is: 3,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.92 : 7,970.81 = 2,390.16 : x
  2. Step 2: Convert to fraction form
    5,313.92/7,970.81 = 2,390.16/x
  3. Step 3: Cross multiply
    5,313.92x = 7,970.81 × 2,390.16
  4. Step 4: Simplify right side
    5,313.92x = 19,051,511.23
  5. Step 5: Solve for x
    x = 19,051,511.23/5,313.92
  6. Step 6: Final answer
    x = 3,585.21

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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.