Home / 1,875.36-2,809.92-1,485.60

Finding the Fourth Proportional to 1,875.36, 2,809.92 and 1,485.60

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Solution

The fourth proportional to 1,875.36, 2,809.92 and 1,485.60 is: 2,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.36 : 2,809.92 = 1,485.60 : x
  2. Step 2: Convert to fraction form
    1,875.36/2,809.92 = 1,485.60/x
  3. Step 3: Cross multiply
    1,875.36x = 2,809.92 × 1,485.60
  4. Step 4: Simplify right side
    1,875.36x = 4,174,417.15
  5. Step 5: Solve for x
    x = 4,174,417.15/1,875.36
  6. Step 6: Final answer
    x = 2,225.93

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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.