Home / 2,809.80-4,210.38-1,507.32

Finding the Fourth Proportional to 2,809.80, 4,210.38 and 1,507.32

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Solution

The fourth proportional to 2,809.80, 4,210.38 and 1,507.32 is: 2,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.80 : 4,210.38 = 1,507.32 : x
  2. Step 2: Convert to fraction form
    2,809.80/4,210.38 = 1,507.32/x
  3. Step 3: Cross multiply
    2,809.80x = 4,210.38 × 1,507.32
  4. Step 4: Simplify right side
    2,809.80x = 6,346,389.98
  5. Step 5: Solve for x
    x = 6,346,389.98/2,809.80
  6. Step 6: Final answer
    x = 2,258.66

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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.