Home / 1,899.36-2,619.36-1,457.28

Finding the Fourth Proportional to 1,899.36, 2,619.36 and 1,457.28

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Solution

The fourth proportional to 1,899.36, 2,619.36 and 1,457.28 is: 2,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.36 : 2,619.36 = 1,457.28 : x
  2. Step 2: Convert to fraction form
    1,899.36/2,619.36 = 1,457.28/x
  3. Step 3: Cross multiply
    1,899.36x = 2,619.36 × 1,457.28
  4. Step 4: Simplify right side
    1,899.36x = 3,817,140.94
  5. Step 5: Solve for x
    x = 3,817,140.94/1,899.36
  6. Step 6: Final answer
    x = 2,009.70

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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.