Home / 1,315.19-1,971.52-535.01

Finding the Fourth Proportional to 1,315.19, 1,971.52 and 535.01

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Solution

The fourth proportional to 1,315.19, 1,971.52 and 535.01 is: 802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.19 : 1,971.52 = 535.01 : x
  2. Step 2: Convert to fraction form
    1,315.19/1,971.52 = 535.01/x
  3. Step 3: Cross multiply
    1,315.19x = 1,971.52 × 535.01
  4. Step 4: Simplify right side
    1,315.19x = 1,054,782.92
  5. Step 5: Solve for x
    x = 1,054,782.92/1,315.19
  6. Step 6: Final answer
    x = 802.00

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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.