Home / 1,918.99-2,646.23-1,807.35

Finding the Fourth Proportional to 1,918.99, 2,646.23 and 1,807.35

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Solution

The fourth proportional to 1,918.99, 2,646.23 and 1,807.35 is: 2,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.99 : 2,646.23 = 1,807.35 : x
  2. Step 2: Convert to fraction form
    1,918.99/2,646.23 = 1,807.35/x
  3. Step 3: Cross multiply
    1,918.99x = 2,646.23 × 1,807.35
  4. Step 4: Simplify right side
    1,918.99x = 4,782,654.75
  5. Step 5: Solve for x
    x = 4,782,654.75/1,918.99
  6. Step 6: Final answer
    x = 2,492.28

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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.