Home / 1,533.80-2,290.01-1,259.16

Finding the Fourth Proportional to 1,533.80, 2,290.01 and 1,259.16

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Solution

The fourth proportional to 1,533.80, 2,290.01 and 1,259.16 is: 1,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.80 : 2,290.01 = 1,259.16 : x
  2. Step 2: Convert to fraction form
    1,533.80/2,290.01 = 1,259.16/x
  3. Step 3: Cross multiply
    1,533.80x = 2,290.01 × 1,259.16
  4. Step 4: Simplify right side
    1,533.80x = 2,883,488.99
  5. Step 5: Solve for x
    x = 2,883,488.99/1,533.80
  6. Step 6: Final answer
    x = 1,879.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.