Home / 1,529.19-2,110.47-899.94

Finding the Fourth Proportional to 1,529.19, 2,110.47 and 899.94

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Solution

The fourth proportional to 1,529.19, 2,110.47 and 899.94 is: 1,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.19 : 2,110.47 = 899.94 : x
  2. Step 2: Convert to fraction form
    1,529.19/2,110.47 = 899.94/x
  3. Step 3: Cross multiply
    1,529.19x = 2,110.47 × 899.94
  4. Step 4: Simplify right side
    1,529.19x = 1,899,296.37
  5. Step 5: Solve for x
    x = 1,899,296.37/1,529.19
  6. Step 6: Final answer
    x = 1,242.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.